Validity (method.) ; Evaluation criterion (method.) ; Story telling (in language acquisition) ; Kindersprache (pathol.) ; Child language (pathol.) ; Specific language impairment; SLI; Dysgrammatismus (Kindersprache) ; Dysgrammatism (child language) ; Handicapped language acquisition ; Screening (speech therapy) ; Assessment criterion (speech therapy) ; Language intervention; Children (speech therapy with) ; Speech therapy for children ; English